What the Python argparse library is, and why it’s important to use it if you need to write command line scripts in Python. How to use the Python argparse library to quickly create a simple CLI in Python. What the advanced usage of the Python argparse library is.
https://realpython.com/command-line-interfaces-python-argparse/
Regular expressions (REs, aka regexps) let programmers specify pattern strings and perform searches and substitutions. Regular expressions are not easy to master, but they can be a powerful tool for processing text. Python offers rich regular expression functionality through the built-in re module. In this chapter, we thoroughly present all about Python’s REs.
https://learning.oreilly.com/library/view/python-in-a/9781098113544/ch10.html
https://www.infoshareacademy.online/products/python-wtajemniczenie/categories/4302466